refac: GET /v1/auth/me

api/handlers/auth/meHandler.go

@@ -0,0 +1,47 @@
+package auth
+
+import (
+	"RenewCMS/api/pkg/apperr"
+	"RenewCMS/api/pkg/claims"
+	"RenewCMS/internal/domain/user"
+	"RenewCMS/internal/infrastructure/useCases"
+	"encoding/json"
+	"errors"
+	"net/http"
+)
+
+type MeHandler struct {
+	GetUseCase *useCases.GetUserUseCase
+}
+
+func NewMeHandler(getUser *useCases.GetUserUseCase) *MeHandler {
+	return &MeHandler{
+		GetUseCase: getUser,
+	}
+}
+
+func (h *MeHandler) Me(w http.ResponseWriter, r *http.Request) {
+	userId, ok := claims.UserId(r)
+	if !ok {
+		http.Error(w, apperr.UnauthorizedErrorMessage, http.StatusUnauthorized)
+		return
+	}
+
+	loadedUser, err := h.GetUseCase.GetUser(userId)
+	if err != nil {
+		if errors.Is(err, user.ErrUserNotFound) {
+			http.Error(w, apperr.UnauthorizedErrorMessage, http.StatusUnauthorized)
+			return
+		}
+		http.Error(w, "Internal server error", http.StatusInternalServerError)
+		return
+	}
+
+	body, err := json.Marshal(newPublicUser(loadedUser))
+	if err != nil {
+		http.Error(w, "Internal server error", http.StatusInternalServerError)
+		return
+	}
+	w.Header().Set("Cache-Control", "no-store")
+	_, _ = w.Write(body)
+}

api/router.go

@@ -57,6 +57,7 @@ func NewAuthRouter(container *UseCases, isProduction bool, rateLimit config.Auth
 
 	loginHandler := auth.NewLoginHandler(container.Token, container.CreateUserUseCase, container.AuthenticateUserUseCase, isProduction)
 	verificationHandler := auth.NewVerificationHandler(container.VerifyUserUseCase, container.CancelRegistrationUseCase, isProduction)
+	meHandler := auth.NewMeHandler(container.GetUserUseCase)
 	passwordResetHandler := auth.NewPasswordResetHandler(container.RequestPasswordResetUseCase, container.ResetPasswordUseCase)
 
 	r.Post("/register", loginHandler.Register)
@@ -78,6 +79,7 @@ func NewAuthRouter(container *UseCases, isProduction bool, rateLimit config.Auth
 		r.Use(middleware.RequireCurrentToken(container.GetUserUseCase))
 		r.Post("/verify", verificationHandler.Verify)
 		r.Delete("/register", verificationHandler.CancelRegistration)
+		r.Get("/me", meHandler.Me)
 	})
 	return r
 }